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A 4.1 kg cart is placed on a frictionless air track with an angle of 64.3o. A 23.4 kg mass is attached to the cart using a massless string draped over the end of a frictionless pulley at the top of
A 50 kg force block at rest on a frictionless surface is acted on by forces F1 = 5.5 N and F2 = 3.5 N . What additional forces keep block at rest?
A double-slit experiment is performed and then redone using slits of double the previous separation. Nothing else is changed. If the approxmation sin Q = Q holds, what happens to the angle between t
An excited hydrogen atom with an electron in the n = 5 stateemits light having a frequency of 6.90 x 10^14 s^-1. Determine the principal quantum level for the final state in thiselectronic transiti
Laser light of 589nm weavlengthis shown through parallel slits forming a series of maximum on a screen 4.20m away. If the distance between the central maximum and the first order maximum is 1.67 cm,
How many collisions does a single Ar atom make in 1.0 s when the temperature is 25 degrees Celcius and the pressure is (a) 10 atm, (b) 1.0 atm, (c) 1.0 μatm?
In a Young's double slit experiment, a 5th order maximum occurs at an angle of 1.422 degree. If the screen is 3.9m from the slit and the slit separation is 0.135mm, what weavlength being used?
A 1.0 dm^3 glass bulb contains 1.0 x 10^23 H2 molecules. If the pressure exerted by the gas is 100 kPa, what are (a) the temperature of the gas, (b) the root mean square speeds of the molecule
The element indium exists naturally as two isotopes.113In has a mass of 112.9043 amu, and 115In has a mass of 114.9041 amu. The average atomic mass of indiumis 114.82 amu. Calculate the percent
Ammonium chloride , NH4, is a very soluble salt . 300g of ammonium chloride is dissolved in 600 ml of what . What is the molar concentration of the solution?
An air-track glider attached to a spring oscillates with a period of 1.50 s. At t=0 s the glider is 5.50 cm left of the equilibrium position and moving to the right at 39.9 cm/s.
The objects volume is determined by displacement of water in a 100mL measuring cylinder (±5%): the volume reading before the object is immersed is 52.4mL, and after immersion the reading is 8
A 0.4-kg object is traveling to the right (in the positive direction) with a speed of 2 m/s. After a 0.2 s collision, the object is traveling to the left at 3 m/s. What is the magnitude of the impul
A man in a bosun chair dangles from a massless rope, which runs over a massless, frictionless pulley and back down to the man's hand. Combined mass of the man and chair is 95.0 kg.
If a pentapeptide was found having the amino acidsPhe,Gly,Met,Ala, and Ser. N-terminal analysis yielded the PTH derivative of alanine. Partial hydrolysis of the pentapeptideyielded the dipeptides Gl
Zinc reacts with hydrochloric acid to produce zinc chloride and hydrogen gas. How many milliters of 3.00m HCI are required to react with 12.35 g of zinc?
Lakes in the Adirondack mountains of New York state areparticularly susceptable to acid rain. One strategy that has been suggested to overcome the acidification of these lakes is to peridocally add
Given that the world's oceans contains 1.35 x10^9 km^3 of water, determine the mass in grams.. show how to obtain converstion factors from km^3 to m^3, and from m^3 to cm^3. Use 1.03 g/cm^3 as
A sample of hydrated copper(II) sulfate (CuSO4nH2O) is heated to 150 degrees centigrade and produces103.74 g anhydrous copper (II) sulfate and 58.55g water.
It has been estimated that the concentration of CO2 inthe atmosphere before the industrial revlution was about 275ppm. If the accumulation of CO2 in the atmospherecontinues, then by the midd
A chemical is placed in a beaker containing 20g. of soil and500ml of water. At equilibrium, the chemical is found in thesoil at a concentration of 100 mg*kg-1 of soil.
A sample of neon gas at a pressure of 1.08 atm fills a flask with avolume of 250 mL at a temp of 24.00C. If the gas istransferred to another flask at 37.20C and a pressure of2.25 atm, what is the v
The second virial coefficient of methane can be approximated by the empirical equation: B'(T) = a + b*exp(-c/T^2), where a =-0.1993 bar^-1, b = 0.2002 bar^-1, c = 0.1131 K^2 with 300 K < T< 6
Derive an expression for the compression factor of a gas thatobeys the equation of state: p(V - nb) = nRT, where b and R areconstants. If the pressure and temperature as such that Vm = 10*b,what is